2. Summarize the trends you see in each population from each generation. a. Dark bears— b. Light bears—

The black bear has a tendency to proliferate, whereas the polar bear has a tendency to undergo faster extinction because they live in the arctic.

The black bear (Ursus americanus), also known as the baribal, is a North American bear, found from Alaska to northern Mexico. It reaches 2.20 m in length, 1.10 m in height at the withers and 360 kg in weight.

The polar bear (Ursus maritimus) is a solitary mammal that lives in the icy waters of the Arctic Circle region. It is the largest species of bear that lives in places with low temperatures, being much feared by other animals that inhabit the place.

Considered the largest terrestrial carnivore and main symbol of arctic resistance, the polar bear has been suffering from climate change.

Whit this information, we can conclude that the black bear has a tendency to proliferate, whereas the polar bear has a tendency to undergo faster extinction because they live in the arctic.

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one of the following parts of cell is common to all type of cells.

A. Cell Wall
B. Large vacuole
C. Small Vacuole
D. Chloroplast​

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.

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

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

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

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

Why does mass determine how fast and how much energy a star can generate?

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

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

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

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

why do we need water and food

Food webs model the way _______ move through an ecosystem.

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

Tall oak trees are better able to compete for sunlight in crowded forests. short oak trees are at a
disadvantage. what type of selection appears to have made oak trees grow tall?
a. stabilizing selection
b. directional selection
c. disruptive selection

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

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

A subset of a population selected to represent the population is a:.

Describe the process in which trees communicate with one another

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

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

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)?

A normal haired man marries a normal haired woman, but they have a son who develops baldness. Explain how the son inherited this disorder and from who he inherited the trait.

1. What function do spindles perform during mitosis?






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

How do the kidneys compensate for acid-base imbalances?.

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

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.

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

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