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mario62 [17]
3 years ago
12

Which characteristics do all bony and jawless fish have in common? Check all that apply.

Biology
2 answers:
vladimir1956 [14]3 years ago
8 0
All except backbone i think
Step2247 [10]3 years ago
4 0

Answer:

gills

Explanation: A fish without a jaw was the first vertebrate to evolve. These fish used filtration to capture their food and sucked water and debris from the sea through their mouths and then released the water and trash through their gills. Some features are as follows:

1. They have a notocorda that serves as support through the back of the fish.

2. Gill bags. These organs are responsible for filtering the oxygen in the water.

3. A pineal eye that is sensitive to light

4. A cartilaginous skeleton

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BRAINLIEST
guajiro [1.7K]

Answer:

Down (plumaceous), (insulation)

Tail (pennaceous), (flight)

Contour (plumaceous/pennaceous), (flight/insulation)

Bristle (pennaceous), (flight)

Filoplume (pennaceous), (flight)

Hope this helps! :)

7 0
3 years ago
You are studying nuclear lamins and use recombinant DNA technology to alter the coding sequence of a nuclear lamin gene. The alt
abruzzese [7]

Answer:

Nuclear lamins will no longer disassemble during mitosis

Explanation:

The nuclear lamina is a fibrillar network inside the nucleus of eukaryotic cells, between the inner nuclear membrane and the peripheral chromatin. Nuclear lamins (also called simply lamin proteins) are intermediate filament-type proteins and represent the major building blocks of the nuclear lamina. During mitosis, the nuclear lamina is disassembled by hyperphosphorylation of nuclear lamins and lamina-associated proteins. The protein responsible for phosphorylating nuclear lamins is p34cdc2, a protein kinase that has a key role in controlling cell cycle progression. In consequence, a mutant form of the nuclear lamin proteins that cannot be phosphorylated will no longer be able to disassemble during mitosis.

5 0
3 years ago
!!HURRY!!! 20 POINTS
Alenkasestr [34]

Agricultural economies are still used in some countries of the Middle East, especially where other natural resources are few. These economies are often associated with a lower standard of living. Herding and livestock raising is a common means of income in areas too dry for farming. Animals raised include cattle, goats, and sheep. Farming often occurs along the coasts, but may also occur in drier areas if irrigation watering methods are used. Some people choose to practice subsistence farming methods, growing only enough food to feed their families. With little fertile soil in the region, it is tough to make a living growing and selling large quantities of crops. Major crops in the Middle East include wheat, cotton, and citrus fruit.

7 0
3 years ago
Read 2 more answers
what is a warm ocean current that helps keep weather along NC's coast mild during the cooler mouths?
xxMikexx [17]
I Live in NC and so we haaadd yo learn this! I personally think it's the Gulf Stream.
6 0
3 years ago
What are the reproductive organs that helped us determine the sex of the frog?
Lostsunrise [7]

Answer:

jfbjbvj

Explanation:

vvv

6 0
2 years ago
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