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3 years ago

Darwin believed that giraffes acquired longer necks by slowly stretching to reach leaves located higher above the

Biology

2 answers:

choli [55]3 years ago

8 0

Answer:

True

Explanation:

marissa [1.9K]3 years ago

4 0

Answer:

False

Explanation:

He believed that they were born with a long neck by chance, and that those with longer necks survived and had offspring with similar features.

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Label each level of dna packaging in the eukaryotic chromosome with the appropriate term.

Lostsunrise [7]

I assume this photo has the labels you are talking about.

DNA double helix consists of two strands that wind around each other with their nucleotides liked.-> it's the structure number 5
nucleosome- it's a segment of DNA wound in sequence around eight histones (proteins)- number 2
Histone- proteins with DNA around them, forming the nucleosome- number 4
Tight helical fiber- chromatin <span>coiled very tightly- 3
Cromosome- </span><span>chromatin condensed even tighter forming a X shape.- 1</span>

3 0

3 years ago

Read 2 more answers

A person is trying to solve the equation for the energy of a light wave: E=hcλ . She knows the values of h and c. What does the

dimulka [17.4K]

Answerd

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Explanation:

8 0

3 years ago

During which process does one bacterium inject its DNA into another

Svetllana [295]

DNA is transferred from one bacterium to another. After the donor cell pulls itself close to the recipient using a structure called a pilus, DNA is transferred between cells. In most cases, this DNA is in the form of a plasmid. An F+ donor cell contains its chromosomal DNA and an F plasmid

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3 years ago

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Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? Larvae use notochords to _____

kirza4 [7]

Answer: Option A

Explanation:

A tunicate is marine invertebrate animal which is a part of chordates. They have notochords and dorsal nerve chord. The subphylum of the organism is called as Urochordata.

The adult urochordates lack notochord but the larval stage of the urochordates have notochord. This is because it helps in swimming of the organism which is required only at the larval stage.

The adult stage of the tunicates is sessile and they do not swim so they do not require notochord.

8 0

3 years ago

Question 1 (5 points)

motikmotik

B) The water molecules remain together. The salt molecules break apart.

Step-by-step explanation:

When the salt is being place upon the water, the sodium in salt becomes attracted to the water molecules. Both H20(water) & NaCI (salt) start to become drawn, during this reaction. This causes water to remain together, while the salt is broken apart and dissolves. Hope this helps!

3 0

2 years ago