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Agata [3.3K]
3 years ago
13

The type of epithelium that consists of two or three layers of cubed shaped cells is

Biology
1 answer:
jekas [21]3 years ago
3 0

Answer:cuboidal epithelial cell

Explanation:as it is wide as they are tall,are cubed shaped they are usually found in lining glands where they secret substance

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Why does the earth appear from blue space?
8_murik_8 [283]

Answer:When sunlight reaches the water; the water absorbs, lights of all colors in the white light and reflects only blue light. Thus, the earth from space appears blue. If the water absorbs all colors and reflects only yellow, then it would appear yellow.

Explanation:

4 0
3 years ago
PLEASE HELP!! 36 POINTS!!!
Serhud [2]

Answer:

Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing alleles becoming more common in the population.

Fitness is a measure of reproductive success (how many offspring an organism leaves in the next generation, relative to others in the group).

Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits (traits determined by many genes).

Natural selection on traits determined by multiple genes may take the form of stabilizing selection, directional selection, or disruptive selection.

Introduction

We've already met a few different mechanisms of evolution. Genetic drift, migration, mutation...the list goes on. All of these mechanisms can make a population evolve, or change in its genetic makeup over generations.

But there's one mechanism of evolution that's a bit more famous than the others, and that's natural selection. What makes natural selection so special? Out of all the mechanisms of evolution, it's the only one that can consistently make populations adapted, or better-suited for their environment, over time.

You may have already seen natural selection as part of Darwin’s theory of evolution. In this article, we will dive deeper – in fact, deeper than Darwin himself could go. We will examine natural selection at the level of population genetics, in terms of allele, genotype, and phenotype frequencies.

Quick review of natural selection

Here is a quick reminder of how a population evolves by natural selection:

Organisms with heritable (genetically determined) features that help them survive and reproduce in a particular environment tend to leave more offspring than their peers.

If this continues over generations, the heritable features that aid survival and reproduction will become more and more common in the population.

The population will not only evolve (change in its genetic makeup and inherited traits), but will evolve in such a way that it becomes adapted, or better-suited, to its environment.

Explanation:

Here's my notes, i used and got it correct.

5 0
2 years ago
What is natural selection
Sati [7]
The process of nature where only the strongest will survive and live on 

Hope this helps
6 0
3 years ago
What are some of the abiotic factors?
devlian [24]

abiotic means things that aren't alive so rain could be one

biotic means living things - rabbits, leafy plants, foxes

There would most likely be a decrease in the population of leafy plants in the meadow.

The fox population would increase if there was a high population of rabbits since there is more food

7 0
2 years ago
. All living things are made of cells
natka813 [3]

Answer:

yes all living things[animals and plants ] have their own cells

Explanation:

hav a nice day :}

4 0
3 years ago
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