What general term is used to describe the introduction of foreign dna into a cell?.

The set of alleles an organism has for a particular trait is what ____

whats a prokaryote? what is a eukaryote?

One naturalist thought he saw a "black lava flow" on Fernandina. What did he actually see?

How does the structure of the water molecule lead to its
ability to dissolve polar compounds?

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is the general term for any remains or traces of an
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1. What function do spindles perform during mitosis?






2. What function do centrioles perform in animal cell mitosis?

During mitosis, centromeres separate and chromatids become individual chromosomes during which phase?.

In order for the egg to reach the uterus, contractions need to occur on the uterine wall to move the egg. What two systems work together to make this
happen?
A) Reproductive and Integumentary
B) Immune and integumentary
C) Circulatory and Digestive D) Reproductive and Muscular

Which is NOT an example of a transfer payment?
A. welfare
B. salaries
C. Medicare
D. Social Security

Base your answer(s) to the following question(s) on the Earth Science Reference Tables, the diagram below, and your knowledge of Earth science. The diagram is a geologic cross section of the rocks that underlie parts of southern New York State and northern New Jersey. Landscape regions are indicated across the top of the diagram. Which important New York State fossil is most likely to be found in the Triassic Age rocks in the Newark Lowlands?

Eurypterid
Mastodon
Coelophysis
Naples tree

Describe the process in which trees communicate with one another

Please help I’ll give Brainliest ;))

Humans have direct development, a closed circulatory system, well developed eyes, and large brains. Which mollusk also shares there features

A portion of dna that encodes a specific protein is a.

What is the main reason that it takes 2 to 3 minutes for the reaction to occur between sucrose and sulfuric acid in the dehydration of sucrose? the activation energy needs to be overcome in the reaction. the activation energy must be removed from the intermediates. the sulfuric acid has to be consumed before the reaction takes place. the sucrose molecules must rearrange to become the catalyst.

Use the drop-down menus to determine which structures of the exocrine system are described below. secrete mucus that protect organs secretes enzymes that aid in digestion secrete tears keep the skin hydrated and soft

Prokaryotes are organisms that do not have defined nuclei in their cells. Eukaryotes are organisms that have cells with membrane-bound nuclei. In which of the following kingdoms are prokaryotes found?

A. Plant and Animal only

B. Bacteria and Archaea only

C. Bacteria, Archaea, Protist and Fungus only

D. Protist, Fungus, Plant and Animal only

If cortisol levels remain high for prolonged periods, the _____ may not function at an optimal level.

Read the scenario.

A biologist is studying golden frogs that live in cool streams running through the rain forests of Central America. The biologist conducts a survey of the population and counts over 100 frogs in one mile of stream. The biologist returns to the same location one year later and counts only 20 frogs in that same stretch of stream. The biologist wonders why there are suddenly so few golden frogs.

The biologist also observes that a mining company has set up a copper mine only a few miles from the stream. By reading studies on copper mining operations in other parts of the world, the biologist learns that the wastewater runoff from the mines is highly acidic and contains potentially toxic compounds.

Which question most closely relates to the biologist's observations and collected data?

Are the golden frogs succumbing to a fungal infection?

Did the golden frogs migrate to a new habitat?

Why was a copper mine built so close to the stream?

Is the runoff from the copper mine contaminating the golden frogs' stream and killing the frogs?

Characteristics of animal cells include which of the following? Select all that apply.

no cell wall, only plasma membrane
large hypertonic vacuole
no chlorophyll or chloroplasts
cleavage furrow
cell plate in cell division

12.
A lizard species mostly eats fruit from one
particular type of tree. If a virus kills most of
these trees, which individual lizards will most
likely survive?
A.
lizards that can climb higher in the fruit trees
B.
lizards that have darker coloration
C.
lizards that can find other types of food
D.
lizards that produce more offspring

The diagram represents the development of an embryo.

Which choice is true about the resulting embryo?

It is genetically different from its parents.
It is genetically identical to its parents.
It contains a different number of chromosomes from its parents.
It contains twice the genetic information of its parents.

The plant cellwall is made up of carbohydrate calked chitin.true /false

Why do anole lizards represent an excellent proxy for studying evolution?.

why do we need water and food

List the types of enzymes made in the salivary glands, the stomach, the pancreas and the small intestine. In each case say which food substance the enzymes break down.​

resume with deforestation urbanization desertification invasive species global warming climate change​

Meiosis Questions:
1. How many chromatids are present in one homologous pair of chromosomes?
2. What is meant by “crossing-over” in meiosis, and how did your model depict this?
3. What effect does crossing-over during meiosis have on the genetic makeup of daughter cells?
4. Why must the number of chromosomes in reproductive cells (gametes) be different than the number of chromosomes in the rest of an organism’s cells (somatic cells)?

Why would algal boom, an overgrowth of algae, harm marine life.

C-reactive protein is released into the bloodstream in response to.