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romanna [79]
3 years ago
9

Once an egg has been fertilized: multiple choice

Biology
2 answers:
Taya2010 [7]3 years ago
5 0

a mature egg is fertilized when it is joined with a sperm cell

the answer is B

Papessa [141]3 years ago
5 0
The answer is A: A zygote is formed
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The oceans cover about 70 percent of the Earth's surface. Ocean water contains salts and we say that ocean water has a certain s
Veronika [31]

Answer:

The salt in the oceans comes from weathering and the erosion of the earth's crust.

Explanation:

The weathering can be described as the breaking down of rocks.

During the weathering of rocks, minerals will be dissolved from the land and salt is one of them. These minerals (salt included) will then be delivered into the oceans by erosion of the Earth's crust.

Erosion can be aided by wind, ice or water. Erosion removed weathered materials. When these weathered materials are removed, new materials (rocks) will be exposed to weathering thereby promoting continuous weathering processes

4 0
3 years ago
Corticotropin-releasing factor is produced by which tissues? select all that apply. adrenal glands anterior pituitary hypothalam
ArbitrLikvidat [17]
<span>Corticotropin-releasing factor is produced by the anterior pituitary, hypothalamus, adrenal glands, and ovaries. It is a hormone released in response to stress. Secretion has been seen to be higher in patients with depression and Alzheimer's disease. In addition to the aforementioned, CRF is secreted in lymphocytes and the placenta.</span>
3 0
3 years ago
Which of the examples below illustrates a homologous body structure?
AlladinOne [14]

The forearm of birds, reptiles, and humans illustrates a homologous body structure.

  • Similar physical characteristics found in species with a shared origin are known as homologous structures, although these characteristics have entirely different biological purposes.
  • The limbs of humans, cats, whales, and bats are examples of homologous structures.
  • All of these structures—arm, leg, flipper, and wing—are supported by the same type of bone structure.
  • The arms of a person and the wings of a bat are excellent examples of homologous structures. Because both bats and people are mammals, they have a common ancestor.
  • Even though they appear considerably different from one another from the outside, a bat's wing and a human arm have remarkably comparable internal bone structures.
  • Wings help bats fly, whereas arms enable human interaction with their environment. The wing and the arm also have various purposes.

learn more about homologous structures here: brainly.com/question/7904813

#SPJ1

3 0
1 year ago
Ever since he suffered a brain injury by falling from a ladder, Zack’s wife has continued to tell the doctor that Zack’s persona
hram777 [196]

Answer:

a)- frontal lobe

Explanation:

Frontal lobe is present at front of each hemisphere and is the largest lobe in mammals. It controls cognitive skills in humans. These skills include judgement, language, emotional expression, problem solving, ability to communicate etc. Hence, it basically controls our personality.

After Zack's brain injury his personality changed. He became more critical and aggressive while earlier he used to be carefree and fun loving. Hence he has likely suffered damage to frontal lobe of his cortex.

6 0
3 years ago
Please help
Jlenok [28]

Answer: It’s very rare thing to happen, so I would either say A, 50% or D, 0%. Sorry if this wasn’t much help.

Explanation:

3 0
3 years ago
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