15. Each of the following is a density-dependent limiting factor EXCEPT A. crowding
B. competition
C. disease
D. seasonal cycles​

Xylem

Explanation:

The flow of water through the xylem is driven by the evaporation of water from the leaves

• The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved minerals
• Water flows more efficiently through some parts of the plant than others
• Water absorbed by roots must cross several cell layers before entering the specialized water transport tissue referred to as xylem
• These cell layers act as a filtration system in the root and have a much greater resistance to water flow than the xylem, where transport occurs in open tubes
• Once in the xylem tissue, water moves easily over long distances in these open tubes
• There are two kinds of conducting elements (i.e., transport tubes) found in the xylem: 1) tracheids and 2) vessels
• Tracheids are smaller than vessels in both diameter and length, and taper at each end, vessels consist of individual cells or vessel elements stacked end-to-end to form continuous open tubes
• Water movement is passively driven by pressure and chemical potential gradients
• The bulk of water absorbed and transported through plants is moved by negative pressure generated by the evaporation of water from the leaves (transpiration)

Answer:

c

Explanation:

more mitochondria within a cell. Which other characteristic makes mitochondria unique organelles

Final answer:

Cell references in a formula are called values. These references point to specific cells in a spreadsheet and are used for calculations or retrieving data.

Explanation:

Cell references in a formula are called values. These references point to specific cells in a spreadsheet and are used to perform calculations or retrieve data. For example, in the formula =A1+B1, A1 and B1 are cell references that represent the values in those cells.

When creating a formula in a spreadsheet program like Microsoft Excel, you often need to refer to the value in another cell. To do this, you use a cell reference, which allows you to dynamically refer to different cells based on their relative position to the formula. A relative reference adjusts automatically when the formula is copied or moved to a different cell.

For example, if you have a formula in cell B1 that adds the values in cells A1 and A2 together, you would use the relative references A1 and A2 in the formula. If you then copy the formula to cell B2, the references automatically adjust to B1 and B2, so the formula now adds the values in cells A2 and A3.

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there's a lagging strand during DNA replication when the DNA synthesis becomes discontinuous.

Answer:

DNA strands have a directionality, and the different ends of a single strand are called the "3' end" and the "5' end." These terms refer to the carbon atom in ribose to which the next phosphate in the chain attaches. In addition to being complementary, the two strands of DNA are antiparallel: they are orientated in opposite directions. This directionality has consequences in DNA synthesis, because DNA polymerase can only synthesize DNA in one direction by adding nucleotides to the 3' end of a DNA strand.

in DNA replication, the leading strand is defined as the new DNA strand at the replication fork that is synthesized in the 5'→3' direction in a continuous manner.

on the other hand ,The lagging strand is the DNA strand at the opposite side of the replication fork from the leading strand, running in the 3' to 5' direction. Because DNA polymerase III cannot synthesize in the 3'→5' direction, the lagging strand is synthesized in short segments known as Okazaki fragments.

Explanation:

Answer:

c) Endoplasmic reticulum, ribosomes, Golgi apparatus

Explanation:

The process of producing and delivering enzymes typically involves the endoplasmic reticulum (ER) where ribosomes are involved in protein synthesis. The newly synthesized enzymes then move to the Golgi apparatus for further processing and packaging before being delivered to their destinations.

Final answer:

The sequence of organelles involved in enzyme production and delivery in your pancreas include: endoplasmic reticulum, ribosomes, and Golgi apparatus. These organelles work in a conjunct to synthesize the enzymes, modify and package them, and finally expel them to be used in the digestive system.

Explanation:

The sequence of organelles involved in enzyme production and delivery in your pancreas follows this order: endoplasmic reticulum, ribosomes, and Golgi apparatus. In the first step, the ribosomes attached to the endoplasmic reticulum are the site of protein synthesis, and in this case, enzyme synthesis. Following the synthesis of these enzymes, they are sent to the Golgi apparatus. Here, they are modified, packaged, and tagged for delivery. The enzymes are then dispatched from the cells through exocytosis into the pancreatic juices which then get released into the digestive system.

The organelles involved in producing and getting enzymes into the digestive system, specifically in the pancreas, are the endoplasmic reticulum, ribosomes, and Golgi apparatus. Ribosomes in the rough endoplasmic reticulum (RER) synthesize the enzyme proteins, which are then modified and packaged in the Golgi apparatus. Finally, the Golgi apparatus sends the enzymes to other areas of the cell or exports them through exocytosis.

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