Which is evidence for the existence of dark energy?

Black holes that are expanding at a constant rate.

Pulsars that seem to be moving closer at an accelerating rate.

Supernovae that are moving away at an accelerating rate.

Galaxies that are rotating at a constant rate.

Answers

Answer 1

Answer:Supernovae that are moving away at an accelerating rate.

Explanation:

took test

Answer 2

Answer:

Supernovae that are moving away at an accelerating rate.

Explanation

i took the quick check


Related Questions

Which is NOT a characteristic of life?

Answers

Answer:

B. breathing is not a characteristic of life

Explanation:

hope this helps

biologists think that endosymbiosis gave rise to mitochondria before plastids partly because:

Answers

Biologists think that endosymbiosis gave rise to mitochondria before plastids partly because: (All eukaryotes have mitochondria whereas many eukaryotes do not have plastids)

most of the iron that is removed from degraded hemoglobin is:

Answers

Answer:

Most of the iron that is removed from degraded hemoglobin is: recycled to the red bone marrow.

Most of the iron removed from degraded hemoglobin is recycled in the red bone marrow.

What is Hemoglobin?

Hemoglobin is defined as an iron-containing oxygen-transporting metalloprotein present in the red blood cells of nearly all vertebrates as well as the tissues of some invertebrates that carries oxygen from the respiratory organs in the blood to the rest of the body.

The blood protein hemoglobin that helps carry oxygen throughout the body and carbon dioxide to your lungs. High hemoglobin levels can cause dizziness, fatigue, easy bruising, and other symptoms.

The iron which is present in hemoglobin which is removed is recycled from the red bone marrow.

Thus, most of the iron removed from degraded hemoglobin is recycled in the red bone marrow.

Learn more about Hemoglobin, here:

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the only way to tell if the red blood cells are crenated is to

Answers

Answer:

is to go for medical check-up

Explanation:

it's through the medical checkup

you will know that it still crenated

The only way to tell if the red blood cells are crenated is to observe them under a microscope

What is crenation?

Crenation is the process of red blood cells becoming misshapen and breaking apart, and this can be seen through the examination of red blood cells under a microscope.

By observing the shape of the red blood cells, it can be determined if they are crenated or not. Additionally, other methods such as hemoglobin analysis or measuring the osmotic fragility of the red blood cells can also be used to determine if crenation has occurred.

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Why does water have a strong surface tension and why is this important?

Answers

Why does water have strong surface tension?

The stronger the cohesive force, the stronger the surface tension. The water molecule has two hydrogen atoms bond to an oxygen atom through covalent bonding. ... Formed bonds are called hydrogen bonds which lead to strong cohesive forces between the water molecules and high surface tension of water.

Why is it important?

The surface tension of water provides the necessary wall tension for the formation of bubbles with water. The tendency to minimize that wall tension pulls the bubbles into spherical shapes. Surface tension and droplets: Surface tension is responsible for the shape of liquid droplets.

Which foods would contain mostly unsaturated fats

Answers

Answer:

avocados and avocado oil.

olives and olive oil.

peanut butter and peanut oil.

vegetable oils, such as sunflower, corn, or canola.

fatty fish, such as salmon and mackerel.

nuts and seeds, such as almonds, peanuts, cashews, and sesame seeds.

Explanation:

HEY GIRL!!!!!!

what are restriction fragment length polymorphisms?

Answers

Answer:

difference in homologous DNA sequences

Explanation:

Restriction Fragment Length Polymorphism (RFLP)is a difference in homologous DNA sequences that can be detected by the presence of fragments of different lengths after digestion of the DNA samples in question with specific restriction endonucleases.

The rate at which particular type of cell divides is linked to the body‘s needs for that type of cell skin cells are typically exposed to more damaging conditions and liver cells skin cells must be replaced more often in liver cells therefore which of these statements is true

Answers

Answer:

Skin cells divide more often than liver cells

Explanation:

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which body system is made up of the heart, veins, and arteries?

Answers

Answer:

The circulatory system

Explanation:

The heart, veins and arteries works together to service the cells of the body

That would be the circulatory system. The heart pumps nutrients and fresh oxygen through the arteries, and the veins take blood with less oxygen back to the heart. The arteries carries nutrients and oxygen to body tissues.

how many heme groups are there in each hemoglobin molecule?

Answers

Answer:

4 heme groups

Explanation:

which system helps regulate body temperature and water loss?

Answers

Answer: The integumentary system consists of the skin, hair, nails, glands, and nerves. Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.

HELP PLS LAWD HAVE MERCY

Answers

c decrease

Explanation:

bc it can't increase if it's going donw

Answer:

its d

Explanation:

The descriptions below explain two ways that water is used by plants on a sunny day.

I. In a process called transpiration, some liquid water in leaves changes to water vapor. The water vapor is released into the air through tiny pores in the leaves. This allows more liquid water from the soil to be pulled up the roots and stem to replace water lost from the leaves.
II. Plants use some of this water in leaves in a process called photosynthesis. During photosynthesis, water and carbon dioxide break apart and recombine to form two new substances, oxygen, and glucose.

Based on the above description of transpiration and photosynthesis, which type of change happens to water during each process?


A. In transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change.

B. In transpiration, because some of its properties change, water undergoes a chemical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a physical change.

C. In transpiration, because its physical properties change, water undergoes a physical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a chemical change.

D. In transpiration, because its chemical properties change, water undergoes a chemical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a physical change.

Answers

The answer is A.
During the process of transpiration the plant sucks the water up through its roots this is a physical change. But, it only goes through a chemical change after the process of photosynthesis because the plant will use sunlight, carbon dioxide, and water and convert it into glucose and oxygen.

Answer:

I thinks its A but not 100%

Explanation:

Where should a prep table be located

Answers

A flat spaced area made where no bugs could get to it and room temp temps between 33°F and 41°F in a kitchen with an ambient temp of 86°F

What element has the following electron distribution, 1s2 2s2 2p6 3s2 3p6?

will give brainliest

Answers

Answer:

The element is Argon

the energy plants gain through photosynthesis is stored in

Answers

The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar

PLEASE HELP DUE SOON 40 POINTS!

Answers

Answer:

earth's atmosphere

Explanation:

Explain the external morphology for external structure of mosquito.​

Answers

I hope that's what you're looking for...

Answer:

Explain the external morphology for external structure of mosquito.

Explanation:

Morphology: Mosquitoes have a slender, delicate and long legged body measuring 3-4mm in length. The body is divisible into 3 parts: head, thorax and abdomen. The head is globular and highly mobile on slender neck. It bears a pair of compound eyes, antennae and mouthparts. The mouthparts are ofpiercing and sucking type. There is a pair of mandibles, a pair of maxillae, labium, labrum and epipharynx and hypophaynx. The thorax is made up of 3 segments; each segment bears a pair of legs. The legs are long, slender and delicate.

circulating hormones are mostly taken up and degraded by the _________ and the __________.

Answers

Answer:

where the picture

Explanation:

plss asan po acc picture

What is the largest corvid?

Answers

Answer:

the thick-billed raven its around 3.1 pounds and 26 in

Explanation:

What does the process of photosynthesis produce?

Answers

Answer:

air for us to breathe

Explanation:

the plants taken in our carbon dioxide and give us oxygen

most land-dwelling invertebrates and all of the amphibians ________.

Answers

Answer:

All amphibians and most land-dwelling invertebrates are ectotherms

Explanation:

All amphibians and most land-dwelling invertebrates are ectotherms whose internal temperatures vary with environmental conditions. This means their energy requirements are lower than those of mammals and birds.

Order the following events that happen to create a pyrocumulus cloud.
First:
second:
last:
answer choices:
( put them in order for the first second and last pls!)

cooler temperatures cause moisture to condense.

heat causes air particles to become less dense.

Convection causes moisture in the air to move upward quickly.

Answers

Order the following events that happen to create a pyrocumulus cloud.
First:
second:
last:
answer choices:
( put them in order for the first second and last pls!)

cooler temperatures cause moisture to condense.

heat causes air particles to become less dense.

Convection causes moisture in the air to move upward quickly

how are saturated and unsaturated fatty acids different

Answers

Answer:

They are distinct because saturated fatty acids have hydrocarbon chains connected by single bonds solely.   Unsaturated fatty acids have one or more double bonds.  Each double bond may be in a cis or trans configeration.

Explanation:

Match the function to the molecule.
Functions:
Provides immediate energy
Forms the cell membrane of all cells
Speeds up the chemical reactions by lowering the activation energy
Provides long-term energy
Stores genetic information
A sugar

Molecules:
Lipids
Nucleic acids
Phospholipids
Proteins
Glucose
Carbohydrates

Answers

Provides immediate energy ---> carbohydratesForms the cell membrane of all cells--->phospholipids Provides long-term energy--->lipids Stores genetic information---->nucleic acid A sugar ---->glucoseSpeeds up the chemical reactions by lowering the activation energy--->proteins(enzymes)

how do frog eat there food

Answers

Answer:

Frogs use their eyeballs to swallow. Frogs eat their prey whole and their eyeballs actually sink down into their mouth and push the food down into their throat.

those who operate fisheries need to be concerned about all the following except

A. Disease

B. Nutrition

C. Water Quality

D. Natural Predators ​

Answers

Answer:

D. Natural Predators.

Scientist prefer to use the term global warming because it
encompasses all the issues caused from an increase in the Earth's temperature.
True
False

Answers

False
Hi how is your day

The atria are the ""upper""chambers of the human heart. What are ""lower"" chambers of the human heart called?

Answers

Answer: The lower chamber of the human hear is called ¨ventricle¨ one ventricle on both the  lower right and  left sides of the heart

Explanation:

Ventricular Dyssynchrony | Cedars-Sinaihttps://www.cedars-sinai.org › diseases-and-conditions › v..

Please help I was supposed to have this done 2 days ago also I’ll give a lot of points for the right answers :)

Answers

Answer:

hypertonic solution=B

semipermeable membrane=D

Water level rise=F

Water level lowers=A

Solutes=C

hypotonic solution=E

Explanation:

hope that helps:)

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