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maria [59]
3 years ago
8

Manatees are an endangered mammal species that live in bodies of water in Florida. Manatees migrate from summer habitats to wint

er habitats and look for safe areas to feed and raise their young. People in boats need to give space to manatees to protect them from harm. What might conservationists do to increase manatee populations?
A. Increase the number of boats
B. increase the local fish population
C. increase the oxygen available in the water
D. increase the amount of protected habitat available
Biology
1 answer:
ddd [48]3 years ago
7 0

Answer: Im pretty sure it´s D.

Explanation: Manatees like to raise and feed their young in safe places so if we increase the amount of protected areas their population is more likely to increase.

Hope this helps!

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storchak [24]
Son los Teusacá, Torca, Juan Amarillo, Fucha, Tunjuelo, Soacha, Neusa, Río Frío, Bojacá, y Río Subachoque

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4 0
3 years ago
This secretes digestive enzymes and buffers which neutralize the stomach acids
Effectus [21]
The pancreas is the organ that releases most of the digestive enzymes needed for chemical digestion. Since the food is entering from the stomach, much of the enzymes are alkaline to neutralize the acid & protect the small intestines.

Hope this helps!
6 0
3 years ago
Biochemical and genetic experiments have demonstrated that the _________ of tRNA are important for recognition by its cognate am
zvonat [6]

Answer:  Acceptor stem and anticodon loop.

Explanation:

Transfer RNA (tRNA) is a small RNA nucleic acid involved in protein synthesis (translation). Each tRNA molecule has two important areas:

  1. A region of trinucleotides, called the anticodon
  2. A region where a specific amino acid binds.

<u>During translation, the ribosome reads the sequence of the mRNA in groups of three bases to assemble the protein</u>. So, in the mRNA chain there are codons, set of three bases, which determine the amino acid to be added to the peptide chain. <u>The tRNA transfers the amino acid</u> to the ribosomes, and then arranges them along the messenger RNA (mRNA) molecule. <u>Then, the tRNA must have an anticodon that is complementary to the codon.</u> Each type of tRNA is specifically combined with 1 of the 20 amino acids to be incorporated into proteins.

This means, during translation, each time an amino acid is added to the growing chain, <u>a tRNA molecule is formed whose base pairs have a complementary sequence with mRNA molecule</u>, ensuring that the appropriate amino acid is inserted into the protein. So, tRNA is a key link between RNA transcription and the translation of that RNA into protein. On the other hand, aminotransferases are enzymes responsible for attaching amino acids to the 3ʹ‐end of cognate tRNAs.

The acceptor stem is the site of attachment of amino acids to tRNA, and anticodon loop is the site of tRNA that is complementary to the codons found in mRNA (that determine the amino acid that will be added) This means, both parts are important for recognition, <u>because the acceptor stem is where the amino acid is, and the anticodon loop ensures that the appropriate amino acid is inserted into the protein</u>.

5 0
3 years ago
Describe the stages of each type of cell reproduction process from a normal patient whose body cells can repair themselves and n
Citrus2011 [14]

The types in which cell divides are:

I. Mitosis: Mitosis is the type of cell division in which the DNA and chromosome number of the daughter cell remains the same as parent cell (2n).

Different stages of mitosis are:

a. Prophase - disappearance of nuclear membrane takes place and chromosome starts to condense.

b. Metaphase - The Chromosome aligns to the equatorial plane and gets attached to the spindle fibre arising from the centrioles through its centromere.

c. Anaphase - The sister chromatids of a chromosome gets separated and starts moving to opposite poles.

d. Telophase - Nuclear membrane reappears and the cells divide.  

One example where mitosis takes place is to repair the part of the body where it has got injured.

II. Meiosis: Meiosis is the type of cell reproduction where the daughter cell have half the number of chromosome and DNA content than mother cell. Meiosis takes place in two stages and they are:

i. Meiosis I - It includes following stages:

a. Prophase I - Nuclear membrane disappears and chromosome starts to condense.

b. Metaphase I -  The homologous chromosome aligns to the equatorial plane and gets attached to the spindle fibre arising from the centrioles through its centromere.

c. Anaphase I - The homologous chromosome gets separated and starts moving to opposite poles.

d. Telophase I - Nuclear membrane reappears and the cells divide.

Meiosis I leads to the formation of two daughter cells.

ii. Meiosis II - It includes following stages:

a. Prophase II - disappearance of nuclear membrane takes place and chromosome starts to condense

b. Metaphase II - The Chromosome aligns to the equatorial plane and gets attached to the spindle fibre arising from the centrioles through its centromere.

c. Anaphase II - The sister chromatids of a chromosome gets separated and starts moving to opposite poles.

d. Telophase II - Nuclear membrane reappears and the cells divide.

Meiosis II leads to the formation of four daughter cells having haploid number of chromosome.  

3 0
3 years ago
A basketball player develops speed and power as a result of practice. This athletic ability will not be passed on to her offspri
Morgarella [4.7K]

Answer:

A basketball player develops speed and power as a result of practice. This athletic ability will not be passed on to her offspring because? base sequences in DNA are not affected by this activity.

Explanation:

3 0
2 years ago
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