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alisha [4.7K]
3 years ago
5

Which element does the thyroid need to function properly?

Biology
1 answer:
sveticcg [70]3 years ago
7 0
Ok your thyroid gland also contains selenium

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Which of the following are abiotic factors that shape ecosystems? <br> Group of answer choices
cestrela7 [59]
Temperature, light and water
8 0
3 years ago
Why do gametes contain half the number of chromosomes as body cells?
Marat540 [252]

Answer:

Explanation:

This is because meoisis division occurs in gamates which are sperm cell and egg cell . And in meoisis division the number of chromosomes for the daughter cells is half the number of chromosomes that the parent cell have. This is because when there is a fussion of male and female sex cells ,the zygote which is the daughter cell should have the 46 chromosomes which is the normal chromosomes for humans and when this chromosomes are in pairs then they should be in 23 pairs of chromosomes which are haploid and later be used for another cycle when the person matures and ready to reproduce

4 0
3 years ago
when a population split into two subgroups what is most likely to cause the subgroups to develop different traits?
marissa [1.9K]

Answer: The question is is incomplete, here are the options.

A. Separating the two groups decreases the chance that the two groups will diverge

B. Traits that form in one group from evolutionary forces quickly spread through both populations

C. Forces like natural selection and genetic drift affect the genes of the two subgroups differently

D. Gene flow is increased in the two subgroups that are formed

The correct Option is C.

C. Forces like natural selection and genetic drift affect the genes of the two subgroups differently.

Explanation:

Forces of natural selection and genetic drift affect the genes of the two subgroups differently because there are differences In the way they are natural selected and genetic drift.

Natural selection is the different phenotype or traits developed by different organisms who h make them to adapt, survive and reproduce than others in their environment. The two sub groups have different phenotype Expressed which cause them to develop different trait.

Genetic drift refers to change or variation in frequency of genes in animals overtime. Genetic drift occur at different rate in different population of organsim which lead to development of different trait in the subgroup.

7 0
3 years ago
Objectives
White raven [17]
• Matthias Schleiden observed that all plants were made of cells; Theodor Schwann observed that all animals were also made of cells; and Rudolf Virchow observed that cells only come from other cells.

• Prokaryotic cells- don’t contain a nucleus or any other membrane-bound organelle.
Eukaryotic cells- contain membrane-bound organelles, including a nucleus.

• Phospholipids make up the basic structure of a cell membrane and are arranged in a double layer called the lipid bilayer.

• Active Transport- moves ions from low concentration to high, using metabolic energy in the form of ATP.
Passive Transport - moves ions from high concentration to low, using no metabolic energy.
5 0
3 years ago
PLEASE HELP!!
Luden [163]

Answer:

D

explaination:

rainfalls can predict the habitat like rainforest and deserts. the amount of sunlight can predict how the species sleep and hunt. and temperatures can predict how animals adapt in hot or cold areas

3 0
2 years ago
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